Maintenance device of heat exchange equipment

Abstract

The utility model discloses an overhauling device of heat exchange equipment, which comprises a tube box, a plurality of tube bundles, a small cap and a large cap, the tube bundles are arranged in the tube box, the small cap and the large cap are detachably sealed, guided and supported, the tube bundles extend to one end, close to the small cap, in the tube box, and the small cap is positioned in the large cap. A maintenance mechanism used for water leakage detection is arranged on one side of the tube bundle, the maintenance mechanism is internally composed of a small flange, a large flange and a sealing gasket, a connector used for communicating and supporting is movably installed in the maintenance mechanism, and the connector is connected with an outer side detection device in a sealed mode; the utility model provides a simple, efficient and accurate method, leakage points are judged and leakage stoppage treatment is carried out by observing water stains, the method can greatly reduce maintenance time and labor cost, improve equipment operation efficiency and safety, have remarkable economic benefits and safety benefits, and improve reliability and accuracy of device use.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange equipment maintenance, in particular to a heat exchange equipment maintenance device. Background Art

[0002] A heat exchanger is a device that supports heat exchange between materials. Floating head heat exchangers are usually used in processes with large heat exchange requirements.

[0003] The number of tube bundles in a floating head heat exchanger ranges from dozens to hundreds, and the materials are mainly carbon steel and 304 stainless steel. After a certain number of years of use, due to the corrosiveness of the materials, individual tube bundles may corrode and leak. If the two materials are contaminated, it will have a serious impact on the operation of the production unit. During the overhaul of the production unit, it is often known that there is a leak in the tube bundle but the specific tube bundle is not known, resulting in a large maintenance workload. Replacing all the tube bundles is not only costly but also time-consuming. Therefore, it is particularly important to quickly find the leaking tube bundle and take effective leak-proof measures.

[0004] Therefore, we provide a maintenance device for heat exchange equipment. Utility Model Content

[0005] The purpose of this utility model is to address the above-mentioned technical problems and provide a maintenance device for heat exchange equipment, which can safely and efficiently perform pressure testing operations on floating head heat exchangers with the least workload and the most convenient method, and use local plugging methods to plug leaks after finding the leaking tube bundle.

[0006] In view of this, the utility model provides a maintenance device for heat exchange equipment, including a pipe box, a plurality of tube bundles installed inside the pipe box, a small cap and a large cap for detachable sealing guide support, the tube bundle extends to one end of the pipe box close to the small cap, and the small cap is located inside the large cap, and a maintenance mechanism for water leakage detection is provided on one side of the tube bundle, the maintenance mechanism is composed of a small flange, a large flange, and a sealing gasket, and a connecting head for connecting support is movably installed inside it, and the connecting head is sealed and connected to the external detection device.

[0007] Preferably, a plurality of thread grooves for fastening are provided through the small flange, and the small flange is threadedly connected to a fastening small plug through the thread groove, and the fastening small plug is used for positioning the small flange relative to the tube bundle.

[0008] Preferably, a flange connecting ring is provided on the side of the large flange close to the small flange, and a plurality of thread grooves for fastening are provided through the large flange, and the thread grooves on the large flange are evenly divided into two groups, and the inner group of thread grooves also penetrates the flange connecting ring.

[0009] Preferably, the sealing gasket is located between the large flange and the small flange, and a plug-in ring is provided on the side of the sealing gasket close to the small flange. The plug-in ring is plugged into the small flange, and the small flange is located inside the plug-in ring, and a thread groove is provided on the plug-in ring, and a thread groove is provided on the sealing gasket.

[0010] Preferably, the threaded groove on the plug-in ring, the threaded groove on the small flange, and the threaded groove on the flange connecting ring are connected to each other, and the flange connecting ring is inserted into the inside of the sealing gasket, and the diameter of the sealing gasket is consistent with the diameter of the large flange, and the sealing gasket and the threaded groove on the large flange are connected.

[0011] Preferably, the large flange is threadedly connected to a large fastening bolt through its outer circle thread groove, and the large fastening bolt is simultaneously connected to the thread groove on the sealing gasket. The large flange and the flange connecting ring are threadedly connected to an auxiliary small bolt through their inner circle thread grooves, and the auxiliary small bolt is simultaneously connected to the plug-in ring and the thread groove on the small flange.

[0012] Preferably, the connector is threadedly connected to the inside of the large flange, and a pressure test pump is threadedly connected to the inner wall of the connector, and the pressure test pump is used for pressure testing.

[0013] Compared with the prior art, the present invention provides a maintenance device for heat exchange equipment, which has the following beneficial effects:

[0014] The utility model can safely and efficiently perform pressure testing on the floating head heat exchanger by using the inspection mechanism with minimal workload and the most convenient method, and can plug the leak by local plugging method after finding the leaking tube bundle.

[0015] The utility model can greatly shorten the inspection and repair time and reduce the maintenance cost through the detection method, and at the same time improve the reliability and stability of the equipment, providing a strong guarantee for the efficient production of the enterprise.

[0016] The utility model tightens and limits the large flange, the sealing gasket and the small flange in sequence, so that the large flange, the sealing gasket, the plug-in ring and the small flange are combined to form a shell-side pipe flange, thereby achieving a stable sealing effect on both sides of the tube bundle and ensuring the stability of the seal during detection and installation.

[0017] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the cross-sectional structure of a heat exchanger of a heat exchange equipment maintenance device proposed by the present invention;

[0019] Figure 2 This is a schematic diagram of the detection status of a maintenance device for heat exchange equipment proposed by the present invention;

[0020] Figure 3 This is an exploded schematic diagram of the maintenance mechanism of a maintenance device for heat exchange equipment proposed in the utility model;

[0021] Figure 4 This is a side structural schematic diagram of the maintenance mechanism portion of a maintenance device for heat exchange equipment proposed by the present invention.

[0022] In the figure: 1. Pipe box; 2. Tube bundle; 3. Small cap; 4. Large cap; 5. Small flange; 6. Large flange; 601. Flange connecting ring; 7. Sealing gasket; 8. Plug ring; 9. Connector; 10. Pressure test pump; 11. Fastening small bolt; 12. Auxiliary small bolt; 13. Fastening large bolt. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0025] Example 1: A heat exchange equipment maintenance device, such as Figures 1-4 As shown, it includes a pipe box 1, several pipe bundles 2 installed inside the pipe box 1, a small cap 3 and a large cap 4 for detachable sealing and guide support. The pipe bundle 2 extends to the end of the pipe box 1 near the small cap 3, and the small cap 3 is located inside the large cap 4. A maintenance mechanism for water leakage detection is provided on one side of the pipe bundle 2. The maintenance mechanism consists of a small flange 5, a large flange 6, and a sealing gasket 7. A connector 9 for communication support is movably installed inside the connector 9, which is sealed and connected to the external detection device.

[0026] When inspecting the tube bundle 2 inside the tube box 1, first, the small cap 3 and the large cap 4 inside the tube box 1 are removed, and then the tube bundle 2 to be inspected is fixed with the large flange 6. Then, the sealing gasket 7 is placed on one end of the small flange 5, and then the large flange 6 is placed on one side of the sealing gasket 7. The small flange 5, the large flange 6, and the sealing gasket 7 are tightened simultaneously. Then, water is injected into the tube bundle 2 through the inside of the large flange 6 to discharge the remaining air inside the tube bundle 2. After the air is discharged, the sealing gasket 7 with a middle seal is used to seal the other end of the tube bundle 2. Then, an air supply device is used to supply air and increase pressure into the tube bundle 2 through the large flange 6. Under the action of pressure, the water inside the tube bundle 2 with a leak will slowly seep out of the tube bundle, and then the leak point can be accurately located and corresponding plugging measures can be taken. Therefore, the use of this method can greatly reduce maintenance time and labor costs, improve equipment operation efficiency and safety, and have significant economic and safety benefits.

[0027] like Figures 1-4 As shown, a plurality of thread grooves for fastening are provided through the small flange 5 , and the small flange 5 is threadedly connected to a fastening small plug 11 through the thread groove. The fastening small plug 11 is used to position the small flange 5 to the tube bundle 2 .

[0028] A flange connection ring 601 is provided on the side of the large flange 6 close to the small flange 5. A plurality of thread grooves for fastening are provided through the large flange 6. The thread grooves on the large flange 6 are evenly divided into two groups, and the inner group of thread grooves also penetrates the flange connection ring 601.

[0029] The sealing gasket 7 is located between the large flange 6 and the small flange 5. A plug-in ring 8 is provided on the side of the sealing gasket 7 close to the small flange 5. The plug-in ring 8 is plugged into the small flange 5, and the small flange 5 is located inside the plug-in ring 8. A threaded groove is provided through the plug-in ring 8, and a threaded groove is provided through the sealing gasket 7.

[0030] After the small flange 5 is plugged into and positioned on the pipe box 1, the sealing gasket 7 is moved to plug the splicing ring 8 into the small flange 5, and then the large flange 6 is moved to plug the flange connecting ring 601 into the sealing gasket 7. Then the large flange 6, the sealing gasket 7, and the small flange 5 are tightened and restricted in sequence to form a shell-side pipe flange by combining the large flange 6, the sealing gasket 7, the splicing ring 8, and the small flange 5, thereby achieving a stable sealing effect on both sides of the tube bundle 2 and ensuring the stability of the seal during inspection and installation.

[0031] Example 2: A heat exchange equipment maintenance device, such as Figures 1-4 As shown, the threaded groove on the plug-in ring 8, the threaded groove on the small flange 5, and the threaded groove on the flange connecting ring 601 are connected to each other, and the flange connecting ring 601 is inserted into the inside of the sealing gasket 7, and the diameter of the sealing gasket 7 is consistent with the diameter of the large flange 6, and the threaded grooves on the sealing gasket 7 and the large flange 6 are connected.

[0032] like Figures 1-4As shown, the large flange 6 is threadedly connected to a fastening large bolt 13 through its outer thread groove, and the fastening large bolt 13 is also connected to the thread groove on the sealing gasket 7. The large flange 6 and the flange connecting ring 601 are threadedly connected to an auxiliary small bolt 12 through their inner thread grooves, and the auxiliary small bolt 12 is also connected to the thread grooves on the plug-in ring 8 and the small flange 5.

[0033] By tightening the small bolts 11 to connect the small flange 5 with the plug-in ring 8, by tightening the auxiliary small bolts 12 to connect the flange connecting ring 601 with the plug-in ring 8, and by tightening the large bolts 13 to connect the large flange 6 with the sealing gasket 7, the accuracy of the position of the shell-side pipe flange during inspection and installation is guaranteed, thereby further improving the stability of its own sealing performance and the accuracy of the inspection results of the tube bundle 2.

[0034] The connector 9 is connected to the inner thread of the large flange 6 , and the inner wall of the connector 9 is threadedly connected to a pressure test pump 10 , which is used for pressure testing.

[0035] Under the air supply support of the pressure test pump 10, the air supply to the inside of the pipe box 1 is guaranteed to be accurate and reliable. At the same time, under the connection guidance of the connector 9, the connection of the air supply and water supply equipment is guaranteed to be reliable, ensuring the accuracy and reliability of the device during detection and use.

[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heat exchange equipment maintenance device, comprising a pipe box (1), a plurality of pipe bundles (2) installed inside the pipe box (1), a small cap (3) and a large cap (4) for a detachable sealing guide support, characterized in that: The tube bundle (2) extends to one end of the interior of the tube box (1) close to the small cap (3), and the small cap (3) is located inside the large cap (4). A maintenance mechanism for water leakage detection is provided on one side of the tube bundle (2). The maintenance mechanism is composed of a small flange (5), a large flange (6), and a sealing gasket (7), and a connector (9) for connecting support is movably installed inside the maintenance mechanism. The connector (9) is sealed and connected to an external detection device.

2. The heat exchange equipment maintenance device according to claim 1, characterized in that: The small flange (5) is provided with a plurality of thread grooves for fastening, and the small flange (5) is threadedly connected to a fastening small bolt (11) through the thread grooves. The fastening small bolt (11) is used for positioning the small flange (5) on the tube bundle (2).

3. The heat exchange equipment maintenance device according to claim 1, characterized in that: A flange connection ring (601) is provided on the side of the large flange (6) close to the small flange (5), and a plurality of thread grooves for fastening are provided through the large flange (6), and the thread grooves on the large flange (6) are evenly divided into two groups, and the thread grooves in the inner group simultaneously pass through the flange connection ring (601).

4. The heat exchange equipment maintenance device according to claim 3, characterized in that: The sealing gasket (7) is located between the large flange (6) and the small flange (5), and a plug-in ring (8) is provided on the side of the sealing gasket (7) close to the small flange (5). The plug-in ring (8) is plugged into the small flange (5), and the small flange (5) is located inside the plug-in ring (8). A threaded groove is provided through the plug-in ring (8), and a threaded groove is provided through the sealing gasket (7).

5. The heat exchange equipment maintenance device according to claim 4, characterized in that: The thread groove on the plug-in ring (8), the thread groove on the small flange (5), and the thread groove on the flange connecting ring (601) are connected to each other, and the flange connecting ring (601) is plugged into the inside of the sealing gasket (7), and the diameter of the sealing gasket (7) is consistent with the diameter of the large flange (6), and the thread grooves on the sealing gasket (7) and the large flange (6) are connected.

6. The heat exchange equipment maintenance device according to claim 4, characterized in that: The large flange (6) is threadedly connected to a fastening large bolt (13) through its outer thread groove, and the fastening large bolt (13) is simultaneously connected to the thread groove on the sealing gasket (7). The large flange (6) and the flange connecting ring (601) are threadedly connected to an auxiliary small bolt (12) through their inner thread grooves, and the auxiliary small bolt (12) is simultaneously connected to the plug-in ring (8) and the thread groove on the small flange (5).

7. The heat exchange equipment maintenance device according to claim 5, characterized in that: The connector (9) is threadedly connected to the inner wall of the large flange (6), and a pressure test pump (10) is threadedly connected to the inner wall of the connector (9), and the pressure test pump (10) is used for pressure testing.

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